K2 Energy - LiFePo4 Batteries

Price: $150 US for the Battery with built-in BMS and $30 US for the charger

Looking for a battery that will run all the electronics in your cockpit for the whole flight without running out of juice? Look no further, the K2 battery is a direct replacement for the normal sealed lead acid (SLA) with identical physical size to fit in your battery box but that is where the similarities end.